Opera 29 slow on Mac?

Everything I do, open settings window, open bookmarks, search, clicking on bookmarks or my dashboard take forever to load.
When I have a site open, google or anything surfing through it, the behavior is normal.

Deactivated all extensions, nothing. I deleted all settings and started fresh, nothing.

Disabling hardware acc produced no difference
Nothing changed between Opera 28 and the 29 update. I have the latest cuda drivers installled but there was no update, there was no system update either, except the 10.10.3 one, but thats weeks back.

I use opera as my main browser on mac, because safar sometimes doesnt load some content, i was very pleased the way opera was functioning, i have it installed in all my devices even on android, but the last version really went wrong somehow, the 28 version is perfect in speed battery usage and all, another thing is that the autoupdate feature should be removed or give the user a chance to disable it.

I hope these things could be fix it in the next updates because i really like your software.

I have a similar issue with Opera 29 that didn't exist in Opera 28. There is nothing in the console messages and I do not have mDNS running, only discoveryd even though this Mac was upgraded from 10..9 to 10.10 and is currently running a beta of 10.10.4, but I had this issue under 10.10.3 public release as well. It is a late 2013 15" MacBook Pro Retina with 16GB of RAM, 1TB SSD, quad core 2.6GHz i7 and Nvidia GeForce GT 750M with 2GB of RAM. I couldn't use QuickTime to make a video as it would not display the spinning color wheel in the video, so it had to be recorded externally. The CPU was 80% or higher for the idle process and the RAM was had around 6GB free and no swap was used.